<template>
    <div class="goodsinfo-container">

        <transition
            @before-enter="beforeEnter"
            @enter="enter"
            @after-enter="afterEnter">
            <div class="ball" v-show="ballFlag" ref="ball"></div>
        </transition>

        <div class="mui-card">
            <div class="mui-card-content">
                <div class="mui-card-content-inner">
                    <swiper :lunbotuList="lunbotu" :isfull="false"></swiper>
                </div>
            </div>
        </div>
        <div class="mui-card">
            <div class="mui-card-header">{{goodsinfo.title}}</div>
            <div class="mui-card-content">
                <div class="mui-card-content-inner">
                    <p class="price">
                        市场价：<del>¥{{goodsinfo.market_price}}</del>&nbsp;&nbsp;销售价：<span class="now_price">¥{{goodsinfo.sell_price}}</span>
                    </p>
                    <p>购买数量：<numbox @getcount="getSelectedCount" :max="goodsinfo.stock_quantity"></numbox></p>
                    <p>
                        <mt-button type="primary" size="small">立即购买</mt-button>
                        <mt-button type="danger" size="small" @click="addToShopCar">加入购物车</mt-button>
                    </p>
                </div>
            </div>
        </div>
        <div class="mui-card">
            <div class="mui-card-header">商品参数</div>
            <div class="mui-card-content">
                <div class="mui-card-content-inner">
                    <p>商品货号：{{goodsinfo.goods_no}}</p>
                    <p>库存情况：{{goodsinfo.stock_quantity}}件</p>
                    <p>上架时间：{{goodsinfo.add_time | dateFormat}}</p>
                </div>
            </div>
            <div class="mui-card-footer">
                <mt-button type="primary" size="large" plain @click="goDesc(id)">图文介绍</mt-button>
                <mt-button type="danger" size="large" plain @click="goComment(id)">商品评论</mt-button>
            </div>
        </div>

    </div>
</template>

<script>
    import swiper from '../subcomponents/swiper.vue'
    import numbox from "../subcomponents/goodsinfo_numbox.vue";

    export default {
        data(){
            return{
                id: this.$route.params.id,
                lunbotu: [],
                goodsinfo: {},
                ballFlag: false,
                selectedCount: 1,
            }
        },
        created(){
            this.getlunbotu()
            this.getGoodsInfo()
        },
        methods: {
            getlunbotu(){
                this.$http.get('api/getthumimages/'+ this.id).then(result => {
                    if (result.body.status === 0 ){
                        result.body.message.forEach(item =>{
                            item.img = item.src
                        });
                        this.lunbotu = result.body.message
                    }
                })
            },
            getGoodsInfo(){
                this.$http.get('api/goods/getinfo/'+ this.id).then(result => {
                    this.goodsinfo = result.body.message[0]
                })
            },
            goDesc(id){
                this.$router.push({name: 'goodsdesc', params: { id }})
            },
            goComment(id){
                this.$router.push({name: 'goodscomment', params: { id }})
            },
            addToShopCar(){
                this.ballFlag = !this.ballFlag;
                var goodsinfo = {
                    id: this.id,
                    count: this.selectedCount,
                    price: this.goodsinfo.sell_price,
                    selected: true
                };
                this.$store.commit('addToCar',goodsinfo)
            },
            beforeEnter(el){
                el.style.transform = 'translate(0, 0)'
            },
            enter(el, done){
                el.offsetWidth;
                const ballPosition = this.$refs.ball.getBoundingClientRect();
                const badgePosition = document.getElementById('badge').getBoundingClientRect();
                const xDist = badgePosition.left - ballPosition.left;
                const yDist = badgePosition.top - ballPosition.top;
                el.style.transform = `translate(${xDist}px, ${yDist}px)`;
                el.style.transition = 'all 0.5s cubic-bezier(.4, -0.3, 1, .68)';
                done()
            },
            afterEnter(el){
                this.ballFlag = !this.ballFlag
            },
            getSelectedCount(count){
                this.selectedCount = count

            }
        },
        components: {
            swiper,
            numbox
        }
    }
</script>

<style lang="scss" scoped>
    .goodsinfo-container {
        background-color: #eee;
        overflow: hidden;
        .now_price {
            color: red;
            font-size: 16px;
            font-weight: bold;
        }
        .mui-card-footer{
             display: block;
             button {
                 margin: 15px 0;
             }
         }
        .ball{
            width: 15px;
            height: 15px;
            border-radius: 50%;
            background-color: red;
            position: absolute;
            z-index: 99;
            top: 390px;
            left: 146px;
        }
    }

</style>